Find the exact value of cos(alpha - beta) given sin(alpha) = - 4/5 and cos(beta) = - 5/8 in Quadrant iii and B in Quadrant ii
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Let the two numbers be x and y
As given, the difference of two numbers is 3, so
or
....(1)
And their sum is 25, so
.....(2)
Putting x=3+y in equation (2)
As, x+y=25
So the two numbers are = 14 and 11